Articles | Volume 21, issue 1
https://doi.org/10.5194/hess-21-311-2017
https://doi.org/10.5194/hess-21-311-2017
Research article
 | 
18 Jan 2017
Research article |  | 18 Jan 2017

Environmental controls on seasonal ecosystem evapotranspiration/potential evapotranspiration ratio as determined by the global eddy flux measurements

Chunwei Liu, Ge Sun, Steven G. McNulty, Asko Noormets, and Yuan Fang

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Short summary
The paper aimed at deriving Kc (AET/PET) for multiple vegetation types and understanding its environmental controls by analyzing the accumulated global eddy flux (FLUXNET) data. We established multiple linear equations for different land covers and seasons to model the dynamics of Kc as function of LAI, site latitude, and precipitation. Our study extended the applications of the traditional Kc method for estimating crop water use to estimating AET rates for natural ecosystems.